src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/mesa/src/src/mesa/main/imports.h - public/gem5-resources - Git at Google

 /*
  * Mesa 3-D graphics library
  * Version:  7.1
  *
  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
  * to deal in the Software without restriction, including without limitation
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * and/or sell copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included
  * in all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */


 /**
  * \file imports.h
  * Standard C library function wrappers.
  *
  * This file provides wrappers for all the standard C library functions
  * like malloc(), free(), printf(), getenv(), etc.
  */


 #ifndef IMPORTS_H
 #define IMPORTS_H


 /* XXX some of the stuff in glheader.h should be moved into this file.
  */
 #include "glheader.h"
 #include <GL/internal/glcore.h>


 #ifdef __cplusplus
 extern "C" {
 #endif


 /**********************************************************************/
 /** \name General macros */
 /*@{*/

 #ifndef NULL
 #define NULL 0
 #endif


 /** gcc -pedantic warns about long string literals, LONGSTRING silences that */
 #if !defined(__GNUC__) || (__GNUC__ < 2) || \
     ((__GNUC__ == 2) && (__GNUC_MINOR__ <= 7))
 # define LONGSTRING
 #else
 # define LONGSTRING __extension__
 #endif

 /*@}*/


 /**********************************************************************/
 /** Memory macros */
 /*@{*/

 /** Allocate \p BYTES bytes */
 #define MALLOC(BYTES)      _mesa_malloc(BYTES)
 /** Allocate and zero \p BYTES bytes */
 #define CALLOC(BYTES)      _mesa_calloc(BYTES)
 /** Allocate a structure of type \p T */
 #define MALLOC_STRUCT(T)   (struct T *) _mesa_malloc(sizeof(struct T))
 /** Allocate and zero a structure of type \p T */
 #define CALLOC_STRUCT(T)   (struct T *) _mesa_calloc(sizeof(struct T))
 /** Free memory */
 #define FREE(PTR)          _mesa_free(PTR)

 /** Allocate \p BYTES aligned at \p N bytes */
 #define ALIGN_MALLOC(BYTES, N)     _mesa_align_malloc(BYTES, N)
 /** Allocate and zero \p BYTES bytes aligned at \p N bytes */
 #define ALIGN_CALLOC(BYTES, N)     _mesa_align_calloc(BYTES, N)
 /** Allocate a structure of type \p T aligned at \p N bytes */
 #define ALIGN_MALLOC_STRUCT(T, N)  (struct T *) _mesa_align_malloc(sizeof(struct T), N)
 /** Allocate and zero a structure of type \p T aligned at \p N bytes */
 #define ALIGN_CALLOC_STRUCT(T, N)  (struct T *) _mesa_align_calloc(sizeof(struct T), N)
 /** Free aligned memory */
 #define ALIGN_FREE(PTR)            _mesa_align_free(PTR)

 /** Copy \p BYTES bytes from \p SRC into \p DST */
 #define MEMCPY( DST, SRC, BYTES)   _mesa_memcpy(DST, SRC, BYTES)
 /** Set \p N bytes in \p DST to \p VAL */
 #define MEMSET( DST, VAL, N )      _mesa_memset(DST, VAL, N)

 /*@}*/


 /*
  * For GL_ARB_vertex_buffer_object we need to treat vertex array pointers
  * as offsets into buffer stores.  Since the vertex array pointer and
  * buffer store pointer are both pointers and we need to add them, we use
  * this macro.
  * Both pointers/offsets are expressed in bytes.
  */
 #define ADD_POINTERS(A, B)  ( (GLubyte *) (A) + (uintptr_t) (B) )


 /**
  * Sometimes we treat GLfloats as GLints.  On x86 systems, moving a float
  * as a int (thereby using integer registers instead of FP registers) is
  * a performance win.  Typically, this can be done with ordinary casts.
  * But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0)
  * these casts generate warnings.
  * The following union typedef is used to solve that.
  */
 typedef union { GLfloat f; GLint i; } fi_type;


 /**********************************************************************
  * Math macros
  */

 #define MAX_GLUSHORT	0xffff
 #define MAX_GLUINT	0xffffffff

 #ifndef M_PI
 #define M_PI (3.1415926536)
 #endif

 #ifndef M_E
 #define M_E (2.7182818284590452354)
 #endif

 #ifndef ONE_DIV_LN2
 #define ONE_DIV_LN2 (1.442695040888963456)
 #endif

 #ifndef ONE_DIV_SQRT_LN2
 #define ONE_DIV_SQRT_LN2 (1.201122408786449815)
 #endif

 #ifndef FLT_MAX_EXP
 #define FLT_MAX_EXP 128
 #endif

 /* Degrees to radians conversion: */
 #define DEG2RAD (M_PI/180.0)


 /***
  *** USE_IEEE: Determine if we're using IEEE floating point
  ***/
 #if defined(__i386__) || defined(__386__) || defined(__sparc__) || \
     defined(__s390x__) || defined(__powerpc__) || \
     defined(__x86_64__) || \
     defined(ia64) || defined(__ia64__) || \
     defined(__hppa__) || defined(hpux) || \
     defined(__mips) || defined(_MIPS_ARCH) || \
     defined(__arm__) || \
     defined(__sh__) || defined(__m32r__) || \
     (defined(__sun) && defined(_IEEE_754)) || \
     (defined(__alpha__) && (defined(__IEEE_FLOAT) || !defined(VMS)))
 #define USE_IEEE
 #define IEEE_ONE 0x3f800000
 #endif


 /***
  *** SQRTF: single-precision square root
  ***/
 #if 0 /* _mesa_sqrtf() not accurate enough - temporarily disabled */
 #  define SQRTF(X)  _mesa_sqrtf(X)
 #else
 #  define SQRTF(X)  (float) sqrt((float) (X))
 #endif


 /***
  *** INV_SQRTF: single-precision inverse square root
  ***/
 #if 0
 #define INV_SQRTF(X) _mesa_inv_sqrt(X)
 #else
 #define INV_SQRTF(X) (1.0F / SQRTF(X))  /* this is faster on a P4 */
 #endif


 /***
  *** LOG2: Log base 2 of float
  ***/
 #ifdef USE_IEEE
 #if 0
 /* This is pretty fast, but not accurate enough (only 2 fractional bits).
  * Based on code from http://www.stereopsis.com/log2.html
  */
 static INLINE GLfloat LOG2(GLfloat x)
 {
    const GLfloat y = x * x * x * x;
    const GLuint ix = *((GLuint *) &y);
    const GLuint exp = (ix >> 23) & 0xFF;
    const GLint log2 = ((GLint) exp) - 127;
    return (GLfloat) log2 * (1.0 / 4.0);  /* 4, because of x^4 above */
 }
 #endif
 /* Pretty fast, and accurate.
  * Based on code from http://www.flipcode.com/totd/
  */
 static INLINE GLfloat LOG2(GLfloat val)
 {
    fi_type num;
    GLint log_2;
    num.f = val;
    log_2 = ((num.i >> 23) & 255) - 128;
    num.i &= ~(255 << 23);
    num.i += 127 << 23;
    num.f = ((-1.0f/3) * num.f + 2) * num.f - 2.0f/3;
    return num.f + log_2;
 }
 #else
 /*
  * NOTE: log_base_2(x) = log(x) / log(2)
  * NOTE: 1.442695 = 1/log(2).
  */
 #define LOG2(x)  ((GLfloat) (log(x) * 1.442695F))
 #endif


 /***
  *** IS_INF_OR_NAN: test if float is infinite or NaN
  ***/
 #ifdef USE_IEEE
 static INLINE int IS_INF_OR_NAN( float x )
 {
    fi_type tmp;
    tmp.f = x;
    return !(int)((unsigned int)((tmp.i & 0x7fffffff)-0x7f800000) >> 31);
 }
 #elif defined(isfinite)
 #define IS_INF_OR_NAN(x)        (!isfinite(x))
 #elif defined(finite)
 #define IS_INF_OR_NAN(x)        (!finite(x))
 #elif defined(__VMS)
 #define IS_INF_OR_NAN(x)        (!finite(x))
 #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 #define IS_INF_OR_NAN(x)        (!isfinite(x))
 #else
 #define IS_INF_OR_NAN(x)        (!finite(x))
 #endif


 /***
  *** IS_NEGATIVE: test if float is negative
  ***/
 #if defined(USE_IEEE)
 static INLINE int GET_FLOAT_BITS( float x )
 {
    fi_type fi;
    fi.f = x;
    return fi.i;
 }
 #define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) < 0)
 #else
 #define IS_NEGATIVE(x) (x < 0.0F)
 #endif


 /***
  *** DIFFERENT_SIGNS: test if two floats have opposite signs
  ***/
 #if defined(USE_IEEE)
 #define DIFFERENT_SIGNS(x,y) ((GET_FLOAT_BITS(x) ^ GET_FLOAT_BITS(y)) & (1<<31))
 #else
 /* Could just use (x*y<0) except for the flatshading requirements.
  * Maybe there's a better way?
  */
 #define DIFFERENT_SIGNS(x,y) ((x) * (y) <= 0.0F && (x) - (y) != 0.0F)
 #endif


 /***
  *** CEILF: ceiling of float
  *** FLOORF: floor of float
  *** FABSF: absolute value of float
  *** LOGF: the natural logarithm (base e) of the value
  *** EXPF: raise e to the value
  *** LDEXPF: multiply value by an integral power of two
  *** FREXPF: extract mantissa and exponent from value
  ***/
 #if defined(__gnu_linux__)
 /* C99 functions */
 #define CEILF(x)   ceilf(x)
 #define FLOORF(x)  floorf(x)
 #define FABSF(x)   fabsf(x)
 #define LOGF(x)    logf(x)
 #define EXPF(x)    expf(x)
 #define LDEXPF(x,y)  ldexpf(x,y)
 #define FREXPF(x,y)  frexpf(x,y)
 #else
 #define CEILF(x)   ((GLfloat) ceil(x))
 #define FLOORF(x)  ((GLfloat) floor(x))
 #define FABSF(x)   ((GLfloat) fabs(x))
 #define LOGF(x)    ((GLfloat) log(x))
 #define EXPF(x)    ((GLfloat) exp(x))
 #define LDEXPF(x,y)  ((GLfloat) ldexp(x,y))
 #define FREXPF(x,y)  ((GLfloat) frexp(x,y))
 #endif


 /***
  *** IROUND: return (as an integer) float rounded to nearest integer
  ***/
 #if defined(USE_SPARC_ASM) && defined(__GNUC__) && defined(__sparc__)
 static INLINE int iround(float f)
 {
    int r;
    __asm__ ("fstoi %1, %0" : "=f" (r) : "f" (f));
    return r;
 }
 #define IROUND(x)  iround(x)
 #elif defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) && \
 			(!defined(__BEOS__) || (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)))
 static INLINE int iround(float f)
 {
    int r;
    __asm__ ("fistpl %0" : "=m" (r) : "t" (f) : "st");
    return r;
 }
 #define IROUND(x)  iround(x)
 #elif defined(USE_X86_ASM) && defined(__MSC__) && defined(__WIN32__)
 static INLINE int iround(float f)
 {
    int r;
    _asm {
 	 fld f
 	 fistp r
 	}
    return r;
 }
 #define IROUND(x)  iround(x)
 #elif defined(__WATCOMC__) && defined(__386__)
 long iround(float f);
 #pragma aux iround =                    \
 	"push   eax"                        \
 	"fistp  dword ptr [esp]"            \
 	"pop    eax"                        \
 	parm [8087]                         \
 	value [eax]                         \
 	modify exact [eax];
 #define IROUND(x)  iround(x)
 #else
 #define IROUND(f)  ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
 #endif


 /***
  *** IROUND_POS: return (as an integer) positive float rounded to nearest int
  ***/
 #ifdef DEBUG
 #define IROUND_POS(f) (assert((f) >= 0.0F), IROUND(f))
 #else
 #define IROUND_POS(f) (IROUND(f))
 #endif


 /***
  *** IFLOOR: return (as an integer) floor of float
  ***/
 #if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
 /*
  * IEEE floor for computers that round to nearest or even.
  * 'f' must be between -4194304 and 4194303.
  * This floor operation is done by "(iround(f + .5) + iround(f - .5)) >> 1",
  * but uses some IEEE specific tricks for better speed.
  * Contributed by Josh Vanderhoof
  */
 static INLINE int ifloor(float f)
 {
    int ai, bi;
    double af, bf;
    af = (3 << 22) + 0.5 + (double)f;
    bf = (3 << 22) + 0.5 - (double)f;
    /* GCC generates an extra fstp/fld without this. */
    __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
    __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
    return (ai - bi) >> 1;
 }
 #define IFLOOR(x)  ifloor(x)
 #elif defined(USE_IEEE)
 static INLINE int ifloor(float f)
 {
    int ai, bi;
    double af, bf;
    fi_type u;

    af = (3 << 22) + 0.5 + (double)f;
    bf = (3 << 22) + 0.5 - (double)f;
    u.f = (float) af;  ai = u.i;
    u.f = (float) bf;  bi = u.i;
    return (ai - bi) >> 1;
 }
 #define IFLOOR(x)  ifloor(x)
 #else
 static INLINE int ifloor(float f)
 {
    int i = IROUND(f);
    return (i > f) ? i - 1 : i;
 }
 #define IFLOOR(x)  ifloor(x)
 #endif


 /***
  *** ICEIL: return (as an integer) ceiling of float
  ***/
 #if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
 /*
  * IEEE ceil for computers that round to nearest or even.
  * 'f' must be between -4194304 and 4194303.
  * This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1",
  * but uses some IEEE specific tricks for better speed.
  * Contributed by Josh Vanderhoof
  */
 static INLINE int iceil(float f)
 {
    int ai, bi;
    double af, bf;
    af = (3 << 22) + 0.5 + (double)f;
    bf = (3 << 22) + 0.5 - (double)f;
    /* GCC generates an extra fstp/fld without this. */
    __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
    __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
    return (ai - bi + 1) >> 1;
 }
 #define ICEIL(x)  iceil(x)
 #elif defined(USE_IEEE)
 static INLINE int iceil(float f)
 {
    int ai, bi;
    double af, bf;
    fi_type u;
    af = (3 << 22) + 0.5 + (double)f;
    bf = (3 << 22) + 0.5 - (double)f;
    u.f = (float) af; ai = u.i;
    u.f = (float) bf; bi = u.i;
    return (ai - bi + 1) >> 1;
 }
 #define ICEIL(x)  iceil(x)
 #else
 static INLINE int iceil(float f)
 {
    int i = IROUND(f);
    return (i < f) ? i + 1 : i;
 }
 #define ICEIL(x)  iceil(x)
 #endif


 /***
  *** UNCLAMPED_FLOAT_TO_UBYTE: clamp float to [0,1] and map to ubyte in [0,255]
  *** CLAMPED_FLOAT_TO_UBYTE: map float known to be in [0,1] to ubyte in [0,255]
  ***/
 #if defined(USE_IEEE) && !defined(DEBUG)
 #define IEEE_0996 0x3f7f0000	/* 0.996 or so */
 /* This function/macro is sensitive to precision.  Test very carefully
  * if you change it!
  */
 #define UNCLAMPED_FLOAT_TO_UBYTE(UB, F)					\
         do {								\
            fi_type __tmp;						\
            __tmp.f = (F);						\
            if (__tmp.i < 0)						\
               UB = (GLubyte) 0;						\
            else if (__tmp.i >= IEEE_0996)				\
               UB = (GLubyte) 255;					\
            else {							\
               __tmp.f = __tmp.f * (255.0F/256.0F) + 32768.0F;		\
               UB = (GLubyte) __tmp.i;					\
            }								\
         } while (0)
 #define CLAMPED_FLOAT_TO_UBYTE(UB, F)					\
         do {								\
            fi_type __tmp;						\
            __tmp.f = (F) * (255.0F/256.0F) + 32768.0F;			\
            UB = (GLubyte) __tmp.i;					\
         } while (0)
 #else
 #define UNCLAMPED_FLOAT_TO_UBYTE(ub, f) \
 	ub = ((GLubyte) IROUND(CLAMP((f), 0.0F, 1.0F) * 255.0F))
 #define CLAMPED_FLOAT_TO_UBYTE(ub, f) \
 	ub = ((GLubyte) IROUND((f) * 255.0F))
 #endif


 /***
  *** START_FAST_MATH: Set x86 FPU to faster, 32-bit precision mode (and save
  ***                  original mode to a temporary).
  *** END_FAST_MATH: Restore x86 FPU to original mode.
  ***/
 #if defined(__GNUC__) && defined(__i386__)
 /*
  * Set the x86 FPU control word to guarentee only 32 bits of precision
  * are stored in registers.  Allowing the FPU to store more introduces
  * differences between situations where numbers are pulled out of memory
  * vs. situations where the compiler is able to optimize register usage.
  *
  * In the worst case, we force the compiler to use a memory access to
  * truncate the float, by specifying the 'volatile' keyword.
  */
 /* Hardware default: All exceptions masked, extended double precision,
  * round to nearest (IEEE compliant):
  */
 #define DEFAULT_X86_FPU		0x037f
 /* All exceptions masked, single precision, round to nearest:
  */
 #define FAST_X86_FPU		0x003f
 /* The fldcw instruction will cause any pending FP exceptions to be
  * raised prior to entering the block, and we clear any pending
  * exceptions before exiting the block.  Hence, asm code has free
  * reign over the FPU while in the fast math block.
  */
 #if defined(NO_FAST_MATH)
 #define START_FAST_MATH(x)						\
 do {									\
    static GLuint mask = DEFAULT_X86_FPU;				\
    __asm__ ( "fnstcw %0" : "=m" (*&(x)) );				\
    __asm__ ( "fldcw %0" : : "m" (mask) );				\
 } while (0)
 #else
 #define START_FAST_MATH(x)						\
 do {									\
    static GLuint mask = FAST_X86_FPU;					\
    __asm__ ( "fnstcw %0" : "=m" (*&(x)) );				\
    __asm__ ( "fldcw %0" : : "m" (mask) );				\
 } while (0)
 #endif
 /* Restore original FPU mode, and clear any exceptions that may have
  * occurred in the FAST_MATH block.
  */
 #define END_FAST_MATH(x)						\
 do {									\
    __asm__ ( "fnclex ; fldcw %0" : : "m" (*&(x)) );			\
 } while (0)

 #elif defined(__WATCOMC__) && defined(__386__)
 #define DEFAULT_X86_FPU		0x037f /* See GCC comments above */
 #define FAST_X86_FPU		0x003f /* See GCC comments above */
 void _watcom_start_fast_math(unsigned short *x,unsigned short *mask);
 #pragma aux _watcom_start_fast_math =                                   \
    "fnstcw  word ptr [eax]"                                             \
    "fldcw   word ptr [ecx]"                                             \
    parm [eax] [ecx]                                                     \
    modify exact [];
 void _watcom_end_fast_math(unsigned short *x);
 #pragma aux _watcom_end_fast_math =                                     \
    "fnclex"                                                             \
    "fldcw   word ptr [eax]"                                             \
    parm [eax]                                                           \
    modify exact [];
 #if defined(NO_FAST_MATH)
 #define START_FAST_MATH(x)                                              \
 do {                                                                    \
    static GLushort mask = DEFAULT_X86_FPU;	                            \
    _watcom_start_fast_math(&x,&mask);                                   \
 } while (0)
 #else
 #define START_FAST_MATH(x)                                              \
 do {                                                                    \
    static GLushort mask = FAST_X86_FPU;                                 \
    _watcom_start_fast_math(&x,&mask);                                   \
 } while (0)
 #endif
 #define END_FAST_MATH(x)  _watcom_end_fast_math(&x)

 #elif defined(_MSC_VER) && defined(_M_IX86)
 #define DEFAULT_X86_FPU		0x037f /* See GCC comments above */
 #define FAST_X86_FPU		0x003f /* See GCC comments above */
 #if defined(NO_FAST_MATH)
 #define START_FAST_MATH(x) do {\
 	static GLuint mask = DEFAULT_X86_FPU;\
 	__asm fnstcw word ptr [x]\
 	__asm fldcw word ptr [mask]\
 } while(0)
 #else
 #define START_FAST_MATH(x) do {\
 	static GLuint mask = FAST_X86_FPU;\
 	__asm fnstcw word ptr [x]\
 	__asm fldcw word ptr [mask]\
 } while(0)
 #endif
 #define END_FAST_MATH(x) do {\
 	__asm fnclex\
 	__asm fldcw word ptr [x]\
 } while(0)

 #else
 #define START_FAST_MATH(x)  x = 0
 #define END_FAST_MATH(x)  (void)(x)
 #endif


 /**
  * Return 1 if this is a little endian machine, 0 if big endian.
  */
 static INLINE GLboolean
 _mesa_little_endian(void)
 {
    const GLuint ui = 1; /* intentionally not static */
    return *((const GLubyte *) &ui);
 }


 /**********************************************************************
  * Functions
  */

 extern void *
 _mesa_malloc( size_t bytes );

 extern void *
 _mesa_calloc( size_t bytes );

 extern void
 _mesa_free( void *ptr );

 extern void *
 _mesa_align_malloc( size_t bytes, unsigned long alignment );

 extern void *
 _mesa_align_calloc( size_t bytes, unsigned long alignment );

 extern void
 _mesa_align_free( void *ptr );

 extern void *
 _mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize,
                     unsigned long alignment);

 extern void *
 _mesa_exec_malloc( GLuint size );

 extern void
 _mesa_exec_free( void *addr );

 extern void *
 _mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize );

 extern void *
 _mesa_memcpy( void *dest, const void *src, size_t n );

 extern void
 _mesa_memset( void *dst, int val, size_t n );

 extern void
 _mesa_memset16( unsigned short *dst, unsigned short val, size_t n );

 extern void
 _mesa_bzero( void *dst, size_t n );

 extern int
 _mesa_memcmp( const void *s1, const void *s2, size_t n );

 extern double
 _mesa_sin(double a);

 extern float
 _mesa_sinf(float a);

 extern double
 _mesa_cos(double a);

 extern float
 _mesa_asinf(float x);

 extern float
 _mesa_atanf(float x);

 extern double
 _mesa_sqrtd(double x);

 extern float
 _mesa_sqrtf(float x);

 extern float
 _mesa_inv_sqrtf(float x);

 extern void
 _mesa_init_sqrt_table(void);

 extern double
 _mesa_pow(double x, double y);

 extern int
 _mesa_ffs(int i);

 extern int
 #ifdef __MINGW32__
 _mesa_ffsll(long i);
 #else
 _mesa_ffsll(long long i);
 #endif

 extern unsigned int
 _mesa_bitcount(unsigned int n);

 extern GLhalfARB
 _mesa_float_to_half(float f);

 extern float
 _mesa_half_to_float(GLhalfARB h);


 extern void *
 _mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size,
                int (*compar)(const void *, const void *) );

 extern char *
 _mesa_getenv( const char *var );

 extern char *
 _mesa_strstr( const char *haystack, const char *needle );

 extern char *
 _mesa_strncat( char *dest, const char *src, size_t n );

 extern char *
 _mesa_strcpy( char *dest, const char *src );

 extern char *
 _mesa_strncpy( char *dest, const char *src, size_t n );

 extern size_t
 _mesa_strlen( const char *s );

 extern int
 _mesa_strcmp( const char *s1, const char *s2 );

 extern int
 _mesa_strncmp( const char *s1, const char *s2, size_t n );

 extern char *
 _mesa_strdup( const char *s );

 extern int
 _mesa_atoi( const char *s );

 extern double
 _mesa_strtod( const char *s, char **end );

 extern int
 _mesa_sprintf( char *str, const char *fmt, ... );

 extern void
 _mesa_printf( const char *fmtString, ... );

 extern int
 _mesa_vsprintf( char *str, const char *fmt, va_list args );


 extern void
 _mesa_warning( __GLcontext *gc, const char *fmtString, ... );

 extern void
 _mesa_problem( const __GLcontext *ctx, const char *fmtString, ... );

 extern void
 _mesa_error( __GLcontext *ctx, GLenum error, const char *fmtString, ... );

 extern void
 _mesa_debug( const __GLcontext *ctx, const char *fmtString, ... );

 extern void
 _mesa_exit( int status );


 #ifdef __cplusplus
 }
 #endif


 #endif /* IMPORTS_H */
	/*
	* Mesa 3-D graphics library
	* Version: 7.1
	*
	* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
	*
	* Permission is hereby granted, free of charge, to any person obtaining a
	* copy of this software and associated documentation files (the "Software"),
	* to deal in the Software without restriction, including without limitation
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* and/or sell copies of the Software, and to permit persons to whom the
	* Software is furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included
	* in all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
	* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	*/


	/**
	* \file imports.h
	* Standard C library function wrappers.
	*
	* This file provides wrappers for all the standard C library functions
	* like malloc(), free(), printf(), getenv(), etc.
	*/


	#ifndef IMPORTS_H
	#define IMPORTS_H


	/* XXX some of the stuff in glheader.h should be moved into this file.
	*/
	#include "glheader.h"
	#include <GL/internal/glcore.h>


	#ifdef __cplusplus
	extern "C" {
	#endif


	/**********************************************************************/
	/** \name General macros */
	/@{/

	#ifndef NULL
	#define NULL 0
	#endif


	/** gcc -pedantic warns about long string literals, LONGSTRING silences that */
	#if !defined(__GNUC__) \|\| (__GNUC__ < 2) \|\| \
	((__GNUC__ == 2) && (__GNUC_MINOR__ <= 7))
	# define LONGSTRING
	#else
	# define LONGSTRING __extension__
	#endif

	/@}/


	/**********************************************************************/
	/** Memory macros */
	/@{/

	/** Allocate \p BYTES bytes */
	#define MALLOC(BYTES) _mesa_malloc(BYTES)
	/** Allocate and zero \p BYTES bytes */
	#define CALLOC(BYTES) _mesa_calloc(BYTES)
	/** Allocate a structure of type \p T */
	#define MALLOC_STRUCT(T) (struct T *) _mesa_malloc(sizeof(struct T))
	/** Allocate and zero a structure of type \p T */
	#define CALLOC_STRUCT(T) (struct T *) _mesa_calloc(sizeof(struct T))
	/** Free memory */
	#define FREE(PTR) _mesa_free(PTR)

	/** Allocate \p BYTES aligned at \p N bytes */
	#define ALIGN_MALLOC(BYTES, N) _mesa_align_malloc(BYTES, N)
	/** Allocate and zero \p BYTES bytes aligned at \p N bytes */
	#define ALIGN_CALLOC(BYTES, N) _mesa_align_calloc(BYTES, N)
	/** Allocate a structure of type \p T aligned at \p N bytes */
	#define ALIGN_MALLOC_STRUCT(T, N) (struct T *) _mesa_align_malloc(sizeof(struct T), N)
	/** Allocate and zero a structure of type \p T aligned at \p N bytes */
	#define ALIGN_CALLOC_STRUCT(T, N) (struct T *) _mesa_align_calloc(sizeof(struct T), N)
	/** Free aligned memory */
	#define ALIGN_FREE(PTR) _mesa_align_free(PTR)

	/** Copy \p BYTES bytes from \p SRC into \p DST */
	#define MEMCPY( DST, SRC, BYTES) _mesa_memcpy(DST, SRC, BYTES)
	/** Set \p N bytes in \p DST to \p VAL */
	#define MEMSET( DST, VAL, N ) _mesa_memset(DST, VAL, N)

	/@}/


	/*
	* For GL_ARB_vertex_buffer_object we need to treat vertex array pointers
	* as offsets into buffer stores. Since the vertex array pointer and
	* buffer store pointer are both pointers and we need to add them, we use
	* this macro.
	* Both pointers/offsets are expressed in bytes.
	*/
	#define ADD_POINTERS(A, B) ( (GLubyte *) (A) + (uintptr_t) (B) )


	/**
	* Sometimes we treat GLfloats as GLints. On x86 systems, moving a float
	* as a int (thereby using integer registers instead of FP registers) is
	* a performance win. Typically, this can be done with ordinary casts.
	* But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0)
	* these casts generate warnings.
	* The following union typedef is used to solve that.
	*/
	typedef union { GLfloat f; GLint i; } fi_type;



	/**********************************************************************
	* Math macros
	*/

	#define MAX_GLUSHORT 0xffff
	#define MAX_GLUINT 0xffffffff

	#ifndef M_PI
	#define M_PI (3.1415926536)
	#endif

	#ifndef M_E
	#define M_E (2.7182818284590452354)
	#endif

	#ifndef ONE_DIV_LN2
	#define ONE_DIV_LN2 (1.442695040888963456)
	#endif

	#ifndef ONE_DIV_SQRT_LN2
	#define ONE_DIV_SQRT_LN2 (1.201122408786449815)
	#endif

	#ifndef FLT_MAX_EXP
	#define FLT_MAX_EXP 128
	#endif

	/* Degrees to radians conversion: */
	#define DEG2RAD (M_PI/180.0)


	/***
	*** USE_IEEE: Determine if we're using IEEE floating point
	***/
	#if defined(__i386__) \|\| defined(__386__) \|\| defined(__sparc__) \|\| \
	defined(__s390x__) \|\| defined(__powerpc__) \|\| \
	defined(__x86_64__) \|\| \
	defined(ia64) \|\| defined(__ia64__) \|\| \
	defined(__hppa__) \|\| defined(hpux) \|\| \
	defined(__mips) \|\| defined(_MIPS_ARCH) \|\| \
	defined(__arm__) \|\| \
	defined(__sh__) \|\| defined(__m32r__) \|\| \
	(defined(__sun) && defined(_IEEE_754)) \|\| \
	(defined(__alpha__) && (defined(__IEEE_FLOAT) \|\| !defined(VMS)))
	#define USE_IEEE
	#define IEEE_ONE 0x3f800000
	#endif


	/***
	*** SQRTF: single-precision square root
	***/
	#if 0 /* _mesa_sqrtf() not accurate enough - temporarily disabled */
	# define SQRTF(X) _mesa_sqrtf(X)
	#else
	# define SQRTF(X) (float) sqrt((float) (X))
	#endif


	/***
	*** INV_SQRTF: single-precision inverse square root
	***/
	#if 0
	#define INV_SQRTF(X) _mesa_inv_sqrt(X)
	#else
	#define INV_SQRTF(X) (1.0F / SQRTF(X)) /* this is faster on a P4 */
	#endif


	/***
	*** LOG2: Log base 2 of float
	***/
	#ifdef USE_IEEE
	#if 0
	/* This is pretty fast, but not accurate enough (only 2 fractional bits).
	* Based on code from http://www.stereopsis.com/log2.html
	*/
	static INLINE GLfloat LOG2(GLfloat x)
	{
	const GLfloat y = x * x * x * x;
	const GLuint ix = ((GLuint ) &y);
	const GLuint exp = (ix >> 23) & 0xFF;
	const GLint log2 = ((GLint) exp) - 127;
	return (GLfloat) log2 * (1.0 / 4.0); /* 4, because of x^4 above */
	}
	#endif
	/* Pretty fast, and accurate.
	* Based on code from http://www.flipcode.com/totd/
	*/
	static INLINE GLfloat LOG2(GLfloat val)
	{
	fi_type num;
	GLint log_2;
	num.f = val;
	log_2 = ((num.i >> 23) & 255) - 128;
	num.i &= ~(255 << 23);
	num.i += 127 << 23;
	num.f = ((-1.0f/3) * num.f + 2) * num.f - 2.0f/3;
	return num.f + log_2;
	}
	#else
	/*
	* NOTE: log_base_2(x) = log(x) / log(2)
	* NOTE: 1.442695 = 1/log(2).
	*/
	#define LOG2(x) ((GLfloat) (log(x) * 1.442695F))
	#endif


	/***
	*** IS_INF_OR_NAN: test if float is infinite or NaN
	***/
	#ifdef USE_IEEE
	static INLINE int IS_INF_OR_NAN( float x )
	{
	fi_type tmp;
	tmp.f = x;
	return !(int)((unsigned int)((tmp.i & 0x7fffffff)-0x7f800000) >> 31);
	}
	#elif defined(isfinite)
	#define IS_INF_OR_NAN(x) (!isfinite(x))
	#elif defined(finite)
	#define IS_INF_OR_NAN(x) (!finite(x))
	#elif defined(__VMS)
	#define IS_INF_OR_NAN(x) (!finite(x))
	#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
	#define IS_INF_OR_NAN(x) (!isfinite(x))
	#else
	#define IS_INF_OR_NAN(x) (!finite(x))
	#endif


	/***
	*** IS_NEGATIVE: test if float is negative
	***/
	#if defined(USE_IEEE)
	static INLINE int GET_FLOAT_BITS( float x )
	{
	fi_type fi;
	fi.f = x;
	return fi.i;
	}
	#define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) < 0)
	#else
	#define IS_NEGATIVE(x) (x < 0.0F)
	#endif


	/***
	*** DIFFERENT_SIGNS: test if two floats have opposite signs
	***/
	#if defined(USE_IEEE)
	#define DIFFERENT_SIGNS(x,y) ((GET_FLOAT_BITS(x) ^ GET_FLOAT_BITS(y)) & (1<<31))
	#else
	/* Could just use (x*y<0) except for the flatshading requirements.
	* Maybe there's a better way?
	*/
	#define DIFFERENT_SIGNS(x,y) ((x) * (y) <= 0.0F && (x) - (y) != 0.0F)
	#endif


	/***
	*** CEILF: ceiling of float
	*** FLOORF: floor of float
	*** FABSF: absolute value of float
	*** LOGF: the natural logarithm (base e) of the value
	*** EXPF: raise e to the value
	*** LDEXPF: multiply value by an integral power of two
	*** FREXPF: extract mantissa and exponent from value
	***/
	#if defined(__gnu_linux__)
	/* C99 functions */
	#define CEILF(x) ceilf(x)
	#define FLOORF(x) floorf(x)
	#define FABSF(x) fabsf(x)
	#define LOGF(x) logf(x)
	#define EXPF(x) expf(x)
	#define LDEXPF(x,y) ldexpf(x,y)
	#define FREXPF(x,y) frexpf(x,y)
	#else
	#define CEILF(x) ((GLfloat) ceil(x))
	#define FLOORF(x) ((GLfloat) floor(x))
	#define FABSF(x) ((GLfloat) fabs(x))
	#define LOGF(x) ((GLfloat) log(x))
	#define EXPF(x) ((GLfloat) exp(x))
	#define LDEXPF(x,y) ((GLfloat) ldexp(x,y))
	#define FREXPF(x,y) ((GLfloat) frexp(x,y))
	#endif


	/***
	*** IROUND: return (as an integer) float rounded to nearest integer
	***/
	#if defined(USE_SPARC_ASM) && defined(__GNUC__) && defined(__sparc__)
	static INLINE int iround(float f)
	{
	int r;
	__asm__ ("fstoi %1, %0" : "=f" (r) : "f" (f));
	return r;
	}
	#define IROUND(x) iround(x)
	#elif defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) && \
	(!defined(__BEOS__) \|\| (__GNUC__ > 2 \|\| (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)))
	static INLINE int iround(float f)
	{
	int r;
	__asm__ ("fistpl %0" : "=m" (r) : "t" (f) : "st");
	return r;
	}
	#define IROUND(x) iround(x)
	#elif defined(USE_X86_ASM) && defined(__MSC__) && defined(__WIN32__)
	static INLINE int iround(float f)
	{
	int r;
	_asm {
	fld f
	fistp r
	}
	return r;
	}
	#define IROUND(x) iround(x)
	#elif defined(__WATCOMC__) && defined(__386__)
	long iround(float f);
	#pragma aux iround = \
	"push eax" \
	"fistp dword ptr [esp]" \
	"pop eax" \
	parm [8087] \
	value [eax] \
	modify exact [eax];
	#define IROUND(x) iround(x)
	#else
	#define IROUND(f) ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
	#endif


	/***
	*** IROUND_POS: return (as an integer) positive float rounded to nearest int
	***/
	#ifdef DEBUG
	#define IROUND_POS(f) (assert((f) >= 0.0F), IROUND(f))
	#else
	#define IROUND_POS(f) (IROUND(f))
	#endif


	/***
	*** IFLOOR: return (as an integer) floor of float
	***/
	#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
	/*
	* IEEE floor for computers that round to nearest or even.
	* 'f' must be between -4194304 and 4194303.
	* This floor operation is done by "(iround(f + .5) + iround(f - .5)) >> 1",
	* but uses some IEEE specific tricks for better speed.
	* Contributed by Josh Vanderhoof
	*/
	static INLINE int ifloor(float f)
	{
	int ai, bi;
	double af, bf;
	af = (3 << 22) + 0.5 + (double)f;
	bf = (3 << 22) + 0.5 - (double)f;
	/* GCC generates an extra fstp/fld without this. */
	__asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
	__asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
	return (ai - bi) >> 1;
	}
	#define IFLOOR(x) ifloor(x)
	#elif defined(USE_IEEE)
	static INLINE int ifloor(float f)
	{
	int ai, bi;
	double af, bf;
	fi_type u;

	af = (3 << 22) + 0.5 + (double)f;
	bf = (3 << 22) + 0.5 - (double)f;
	u.f = (float) af; ai = u.i;
	u.f = (float) bf; bi = u.i;
	return (ai - bi) >> 1;
	}
	#define IFLOOR(x) ifloor(x)
	#else
	static INLINE int ifloor(float f)
	{
	int i = IROUND(f);
	return (i > f) ? i - 1 : i;
	}
	#define IFLOOR(x) ifloor(x)
	#endif


	/***
	*** ICEIL: return (as an integer) ceiling of float
	***/
	#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
	/*
	* IEEE ceil for computers that round to nearest or even.
	* 'f' must be between -4194304 and 4194303.
	* This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1",
	* but uses some IEEE specific tricks for better speed.
	* Contributed by Josh Vanderhoof
	*/
	static INLINE int iceil(float f)
	{
	int ai, bi;
	double af, bf;
	af = (3 << 22) + 0.5 + (double)f;
	bf = (3 << 22) + 0.5 - (double)f;
	/* GCC generates an extra fstp/fld without this. */
	__asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
	__asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
	return (ai - bi + 1) >> 1;
	}
	#define ICEIL(x) iceil(x)
	#elif defined(USE_IEEE)
	static INLINE int iceil(float f)
	{
	int ai, bi;
	double af, bf;
	fi_type u;
	af = (3 << 22) + 0.5 + (double)f;
	bf = (3 << 22) + 0.5 - (double)f;
	u.f = (float) af; ai = u.i;
	u.f = (float) bf; bi = u.i;
	return (ai - bi + 1) >> 1;
	}
	#define ICEIL(x) iceil(x)
	#else
	static INLINE int iceil(float f)
	{
	int i = IROUND(f);
	return (i < f) ? i + 1 : i;
	}
	#define ICEIL(x) iceil(x)
	#endif


	/***
	*** UNCLAMPED_FLOAT_TO_UBYTE: clamp float to [0,1] and map to ubyte in [0,255]
	*** CLAMPED_FLOAT_TO_UBYTE: map float known to be in [0,1] to ubyte in [0,255]
	***/
	#if defined(USE_IEEE) && !defined(DEBUG)
	#define IEEE_0996 0x3f7f0000 /* 0.996 or so */
	/* This function/macro is sensitive to precision. Test very carefully
	* if you change it!
	*/
	#define UNCLAMPED_FLOAT_TO_UBYTE(UB, F) \
	do { \
	fi_type __tmp; \
	__tmp.f = (F); \
	if (__tmp.i < 0) \
	UB = (GLubyte) 0; \
	else if (__tmp.i >= IEEE_0996) \
	UB = (GLubyte) 255; \
	else { \
	__tmp.f = __tmp.f * (255.0F/256.0F) + 32768.0F; \
	UB = (GLubyte) __tmp.i; \
	} \
	} while (0)
	#define CLAMPED_FLOAT_TO_UBYTE(UB, F) \
	do { \
	fi_type __tmp; \
	__tmp.f = (F) * (255.0F/256.0F) + 32768.0F; \
	UB = (GLubyte) __tmp.i; \
	} while (0)
	#else
	#define UNCLAMPED_FLOAT_TO_UBYTE(ub, f) \
	ub = ((GLubyte) IROUND(CLAMP((f), 0.0F, 1.0F) * 255.0F))
	#define CLAMPED_FLOAT_TO_UBYTE(ub, f) \
	ub = ((GLubyte) IROUND((f) * 255.0F))
	#endif


	/***
	*** START_FAST_MATH: Set x86 FPU to faster, 32-bit precision mode (and save
	*** original mode to a temporary).
	*** END_FAST_MATH: Restore x86 FPU to original mode.
	***/
	#if defined(__GNUC__) && defined(__i386__)
	/*
	* Set the x86 FPU control word to guarentee only 32 bits of precision
	* are stored in registers. Allowing the FPU to store more introduces
	* differences between situations where numbers are pulled out of memory
	* vs. situations where the compiler is able to optimize register usage.
	*
	* In the worst case, we force the compiler to use a memory access to
	* truncate the float, by specifying the 'volatile' keyword.
	*/
	/* Hardware default: All exceptions masked, extended double precision,
	* round to nearest (IEEE compliant):
	*/
	#define DEFAULT_X86_FPU 0x037f
	/* All exceptions masked, single precision, round to nearest:
	*/
	#define FAST_X86_FPU 0x003f
	/* The fldcw instruction will cause any pending FP exceptions to be
	* raised prior to entering the block, and we clear any pending
	* exceptions before exiting the block. Hence, asm code has free
	* reign over the FPU while in the fast math block.
	*/
	#if defined(NO_FAST_MATH)
	#define START_FAST_MATH(x) \
	do { \
	static GLuint mask = DEFAULT_X86_FPU; \
	__asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \
	__asm__ ( "fldcw %0" : : "m" (mask) ); \
	} while (0)
	#else
	#define START_FAST_MATH(x) \
	do { \
	static GLuint mask = FAST_X86_FPU; \
	__asm__ ( "fnstcw %0" : "=m" (*&(x)) ); \
	__asm__ ( "fldcw %0" : : "m" (mask) ); \
	} while (0)
	#endif
	/* Restore original FPU mode, and clear any exceptions that may have
	* occurred in the FAST_MATH block.
	*/
	#define END_FAST_MATH(x) \
	do { \
	__asm__ ( "fnclex ; fldcw %0" : : "m" (*&(x)) ); \
	} while (0)

	#elif defined(__WATCOMC__) && defined(__386__)
	#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */
	#define FAST_X86_FPU 0x003f /* See GCC comments above */
	void _watcom_start_fast_math(unsigned short x,unsigned short mask);
	#pragma aux _watcom_start_fast_math = \
	"fnstcw word ptr [eax]" \
	"fldcw word ptr [ecx]" \
	parm [eax] [ecx] \
	modify exact [];
	void _watcom_end_fast_math(unsigned short *x);
	#pragma aux _watcom_end_fast_math = \
	"fnclex" \
	"fldcw word ptr [eax]" \
	parm [eax] \
	modify exact [];
	#if defined(NO_FAST_MATH)
	#define START_FAST_MATH(x) \
	do { \
	static GLushort mask = DEFAULT_X86_FPU; \
	_watcom_start_fast_math(&x,&mask); \
	} while (0)
	#else
	#define START_FAST_MATH(x) \
	do { \
	static GLushort mask = FAST_X86_FPU; \
	_watcom_start_fast_math(&x,&mask); \
	} while (0)
	#endif
	#define END_FAST_MATH(x) _watcom_end_fast_math(&x)

	#elif defined(_MSC_VER) && defined(_M_IX86)
	#define DEFAULT_X86_FPU 0x037f /* See GCC comments above */
	#define FAST_X86_FPU 0x003f /* See GCC comments above */
	#if defined(NO_FAST_MATH)
	#define START_FAST_MATH(x) do {\
	static GLuint mask = DEFAULT_X86_FPU;\
	__asm fnstcw word ptr [x]\
	__asm fldcw word ptr [mask]\
	} while(0)
	#else
	#define START_FAST_MATH(x) do {\
	static GLuint mask = FAST_X86_FPU;\
	__asm fnstcw word ptr [x]\
	__asm fldcw word ptr [mask]\
	} while(0)
	#endif
	#define END_FAST_MATH(x) do {\
	__asm fnclex\
	__asm fldcw word ptr [x]\
	} while(0)

	#else
	#define START_FAST_MATH(x) x = 0
	#define END_FAST_MATH(x) (void)(x)
	#endif


	/**
	* Return 1 if this is a little endian machine, 0 if big endian.
	*/
	static INLINE GLboolean
	_mesa_little_endian(void)
	{
	const GLuint ui = 1; /* intentionally not static */
	return ((const GLubyte ) &ui);
	}



	/**********************************************************************
	* Functions
	*/

	extern void *
	_mesa_malloc( size_t bytes );

	extern void *
	_mesa_calloc( size_t bytes );

	extern void
	_mesa_free( void *ptr );

	extern void *
	_mesa_align_malloc( size_t bytes, unsigned long alignment );

	extern void *
	_mesa_align_calloc( size_t bytes, unsigned long alignment );

	extern void
	_mesa_align_free( void *ptr );

	extern void *
	_mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize,
	unsigned long alignment);

	extern void *
	_mesa_exec_malloc( GLuint size );

	extern void
	_mesa_exec_free( void *addr );

	extern void *
	_mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize );

	extern void *
	_mesa_memcpy( void dest, const void src, size_t n );

	extern void
	_mesa_memset( void *dst, int val, size_t n );

	extern void
	_mesa_memset16( unsigned short *dst, unsigned short val, size_t n );

	extern void
	_mesa_bzero( void *dst, size_t n );

	extern int
	_mesa_memcmp( const void s1, const void s2, size_t n );

	extern double
	_mesa_sin(double a);

	extern float
	_mesa_sinf(float a);

	extern double
	_mesa_cos(double a);

	extern float
	_mesa_asinf(float x);

	extern float
	_mesa_atanf(float x);

	extern double
	_mesa_sqrtd(double x);

	extern float
	_mesa_sqrtf(float x);

	extern float
	_mesa_inv_sqrtf(float x);

	extern void
	_mesa_init_sqrt_table(void);

	extern double
	_mesa_pow(double x, double y);

	extern int
	_mesa_ffs(int i);

	extern int
	#ifdef __MINGW32__
	_mesa_ffsll(long i);
	#else
	_mesa_ffsll(long long i);
	#endif

	extern unsigned int
	_mesa_bitcount(unsigned int n);

	extern GLhalfARB
	_mesa_float_to_half(float f);

	extern float
	_mesa_half_to_float(GLhalfARB h);


	extern void *
	_mesa_bsearch( const void key, const void base, size_t nmemb, size_t size,
	int (compar)(const void , const void *) );

	extern char *
	_mesa_getenv( const char *var );

	extern char *
	_mesa_strstr( const char haystack, const char needle );

	extern char *
	_mesa_strncat( char dest, const char src, size_t n );

	extern char *
	_mesa_strcpy( char dest, const char src );

	extern char *
	_mesa_strncpy( char dest, const char src, size_t n );

	extern size_t
	_mesa_strlen( const char *s );

	extern int
	_mesa_strcmp( const char s1, const char s2 );

	extern int
	_mesa_strncmp( const char s1, const char s2, size_t n );

	extern char *
	_mesa_strdup( const char *s );

	extern int
	_mesa_atoi( const char *s );

	extern double
	_mesa_strtod( const char s, char *end );

	extern int
	_mesa_sprintf( char str, const char fmt, ... );

	extern void
	_mesa_printf( const char *fmtString, ... );

	extern int
	_mesa_vsprintf( char str, const char fmt, va_list args );


	extern void
	_mesa_warning( __GLcontext gc, const char fmtString, ... );

	extern void
	_mesa_problem( const __GLcontext ctx, const char fmtString, ... );

	extern void
	_mesa_error( __GLcontext ctx, GLenum error, const char fmtString, ... );

	extern void
	_mesa_debug( const __GLcontext ctx, const char fmtString, ... );

	extern void
	_mesa_exit( int status );


	#ifdef __cplusplus
	}
	#endif


	#endif /* IMPORTS_H */